245745

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:181

約数の個数: 24

約数和(自身を含む): 439296

約数和(自身を除く): 193551

約数列:

[1, 3, 5, 9, 15, 43, 45, 127, 129, 215, 381, 387, 635, 645, 1143, 1905, 1935, 5461, 5715, 16383, 27305, 49149, 81915, 245745]

約数ペア:

[(1, 245745), (3, 81915), (5, 49149), (9, 27305), (15, 16383), (43, 5715), (45, 5461), (127, 1935), (129, 1905), (215, 1143), (381, 645), (387, 635)]